Update python-glanceclient to allow anything < v2

The python-glanceclient pythonic API shouldn't break until v2 is
released, so let's allow anything up to that known point.

Alters the way test exceptions are constructed so that we're
not dependent on the internals of how 3rd party libraries
handle their exceptions while still being able to use them
for real testing in Horizon.

Fixes bug 1035511

Change-Id: I9a4379a19d5d6dee9d2349a73d9321def45ad78d

horizon/tests/test_data/exceptions.py

@@ -19,22 +19,37 @@ from novaclient import exceptions as nova_exceptions
 from .utils import TestDataContainer
 
 
-def data(TEST):
-    TEST.exceptions = TestDataContainer()
+def create_stubbed_exception(cls, status_code=500):
     msg = "Expected failure."
 
-    keystone_unauthorized = keystone_exceptions.Unauthorized(401)
-    keystone_unauthorized.silence_logging = True
-    TEST.exceptions.keystone_unauthorized = keystone_unauthorized
+    def fake_init_exception(self, code, message):
+        self.code = code
+        self.message = message
 
-    keystone_exception = keystone_exceptions.ClientException(500, message=msg)
-    keystone_exception.silence_logging = True
-    TEST.exceptions.keystone = keystone_exception
+    def fake_str(self):
+        return str(self.message)
 
-    nova_exception = nova_exceptions.ClientException(500, message=msg)
-    nova_exception.silence_logging = True
-    TEST.exceptions.nova = nova_exception
+    def fake_unicode(self):
+        return unicode(self.message)
 
-    glance_exception = glance_exceptions.ClientException(500, message=msg)
-    glance_exception.silence_logging = True
-    TEST.exceptions.glance = glance_exception
+    cls.__init__ = fake_init_exception
+    cls.__str__ = fake_str
+    cls.__unicode__ = fake_unicode
+    cls.silence_logging = True
+    return cls(status_code, msg)
+
+
+def data(TEST):
+    TEST.exceptions = TestDataContainer()
+
+    unauth = keystone_exceptions.Unauthorized
+    TEST.exceptions.keystone_unauthorized = create_stubbed_exception(unauth)
+
+    keystone_exception = keystone_exceptions.ClientException
+    TEST.exceptions.keystone = create_stubbed_exception(keystone_exception)
+
+    nova_exception = nova_exceptions.ClientException
+    TEST.exceptions.nova = create_stubbed_exception(nova_exception)
+
+    glance_exception = glance_exceptions.ClientException
+    TEST.exceptions.glance = create_stubbed_exception(glance_exception)

run_tests.sh

@@ -6,7 +6,7 @@ set -o errexit
 # Increment me any time the environment should be rebuilt.
 # This includes dependncy changes, directory renames, etc.
 # Simple integer secuence: 1, 2, 3...
-environment_version=25
+environment_version=26
 #--------------------------------------------------------#
 
 function usage {

tools/pip-requires

@@ -3,7 +3,7 @@ Django>=1.4
 django_compressor
 django_openstack_auth
 python-cloudfiles
-python-glanceclient>=0.3,<0.4
+python-glanceclient<2
 python-keystoneclient
 python-novaclient
 pytz